gorman



J. C. GORMAN, In.

DOUBLE ACTING SINGLE CYLINDER PUMP.

APPLICATION FILED JUNE 6, I9I9.

"1,323,749. Patented Dec. 2,1919.

' 3 SHEETS-SHEET I.

J. C. GORMAN, JR.

. DOUBLE ACTING SINGLE CYLINDER PUMP.

APPLICATION FILED JUNE 6, 19m.

1 323,749. Patented Dec. 19.

s SHEETS-SH J. C. GORMAN, JR-

DOUBLE ACTING SINGLE IYLINDER PUMP.

APPLlCATlON FILED JUNE 6, 19:9.

1,323,749. Patented Dec. 2,1919.

3 SHEET SSHEET 3- i g Z @lwweutoz JAMES GARV ILL GORP/IAN, JR., 0FMANSFIELD, OHIO, ASSIGNOR TO BARNES'MANUFAC- TUBING- COMPANY, OFMANSFIELIL OIIIO, A CORPORATION OF OHIO.

DOUBLE-ACTING SINGLE-CYLINDER PUMP.

To all whom it may concern:

vBe it known that-"I, J AMES GARVILL Goa MAN, Jr., a citizenof theUnited States, re siding at Mansfield, in the county of Rich landandState of Ohio, have invented certain new and useful Improvements inDonble-Acting Single-Cylinder Pumps; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same. i p

This invention relates to pumps, and

' more particularly to double acting single cylinder belt-driven powerpumps.

In belt-driven pumpsof this type as heretofore ordinarily constructed,it is a common practice to cast the bearings for (the driving shaft andthe counter-shaft on a rear head which is bolted to the cylinder, so asto sustain the shaft bearings, and to afford access to the rear end ofthe cylinder, it is'necessary to remove not only the head, but also thecom'iecting' rods and all of the driving gearing on the rear, whichrequires considerabletime, inasmuch as about onehalf of the pumpisdismantled. In another design or construction the rear end of thecylinder is cast solid, that is, without a removable head, and in orderto afford access to the rear end of the cylinder,.it is necessary totake off the connecting rods and also the front cylinder head and towithdraw the piston, which'also requires about one-half of the pump tobedismantled. 1

The primary object of my invention is to obviate these. objections andprovide a simple, efficient and durable pump of the characterreferred-to, consisting of few parts assembled in compact form, so as tooccupy comparatively littlespace, and having bear.-

ings, for both the driving shaft and the countershaft through whichmotion is imparted to the piston, integral with the cylinder casting orpump; body; the cylinder being; provided with a rear detachable head sothat to afiord access to. the cylinder, it'is only necessary to remove asingle fastening bolt without disturbing the connecting rods or drivinggear. A further object. is to use only a single gear drive instead ofthe double gears ordinarily employed.

Specification of Letters Patent.

Patented Dec. 2, 1919.-

Application filed June 6, 1919. Seria1 No.-302,264.

Fig.2 is a vertical sectional side elevation of the same;

Fig. 3 is a front vertical sectional elevation of the" same;

Fig. 4 isa plan view of the pump body or casing having all of the partsshown integral therewith,the working parts being removed; v

Fig. 5 is a vertical longitudinalsectional elevation; and

Fig. 6' is a vertical transverse sectional elevation taken at rightangles to the view shown in Fig. 5. t

Referring tosaid drawings, in which the same reference letters are usedto denote corresponding parts in different views, the letter A maydenote the pump body, which is cast integrally with substantiallysemicircular upper' and lower shaft bearing members or shaft. bearingsB. and B to which similar. detachable members are bolted, as shown inFig. 2 to complete the bearings for the two shafts C and C The halfbearings are each'provided with apertured lugs or end portions toreceive fastening bolts by which the opposed substantially semi-circularmembers are bolted to thecorr'espondingly shaped fixed members and theshafts O and C are journaled in these bearings in close proximity to thepump body, one being arranged slightly above the other, as shown, so asto shorten the pump. .The letter D denotes an open ended cylinder, therear end of which is closed by a detachable head (Z, which is firmlysecured in place and adapted to be easily removed to permit access tothe cylinder by means'of a cross-bar or bolster E and a, set screwpassing through saidbolster and bearing on said head. The bolster isslidably supported on ribs or guideways E preferablycast integrally withor rigidly secured to rearwardly projecting arms cararms being casingand having apertured lugs or flanges on their lower ends to receive.fastening bolts by which said body may be firmly secured to the floor ofthe building or other foundation on which the pump is mounted. The pumpbody has formed therein an inlet opening a which is conveniently locatedbelow and midway of the cylinder D, and with an outlet or dischargeopening 0. which is preferably arrangeddirectly opposite the forwarddischarge valve, in order to permit the use of pulleys on thecounter-shaft without interfering with the discharge pipe. The open endsof the pump cylinder are in communication with said inlet and dischargeopenings through waterways at opposite ends of the cylinder and castintegrally therewith, said waterways being provided with suitableopenings to receivethe usual check valves through which wateris drawn inand discharged at each stroke of the piston in the usualmanner; saidinlet and vdis charge openings being connected in any suitable mannerwith suitable inlet and discharge pipes (not shown). The pump body hasalso mounted thereon an air chamber F, which may be conveniently securedthereto by means of three bolts fitted in bifu cated lugs, one at thefront and one at each side thereof, as shown more clearly in Figs. 1 and2 of the drawings. a

The driven shaft C receives its motion from a counter-shaft C to. whichpower is applied, preferably by means of a belt running over a pulley.G, which 18 fast on the shaft 0 and beside which is placed a loosepulley G onto which. the belt may be shifted when it is desired to stopthe pump by any ofthe means ordinarily employed for that purpose. A apinion 0 on one end of the power shaft C meshes with a gear wheel 0 onthe adjacent end of the driven shaftC which carries a crank pin havingapivotal connection. with one end of a pitman rod-H,

the other end of which is pivotally connected with a reciprocatingcross-head I to which the forward end of the piston rod K is secured.The shaft'C also carries a crank wheel C having a pin 0 for pivotal.connection with the connecting rod H whichis also pivotally connected atits forward endv with one end of the cross-head I, whereby areciprocatory' movement is imparted to the pumpfpiston by the rotationof the driving and driven shafts. The shaft bearing B, which is castintegrally with the pump body or casing, has alateralextension- 72 inorder to'support the belt driven pulley at one side of the pump bodyclear of the working parts of the pump, and a web or rib is castintegral with said extension, whereby it is firmly braced to preventbreakage due to excessive strain thereon.

I thus provide a very simple, efficient, inexpensive, strong and durabledouble acting single cylinder belt-driven power pump having the bearingsof both the driving shaft and the counter-shaft integral with theconstruction and lessening the cost of manufacture and atthe same tlmereducing the slze of the pump so that lt'will occupy less space thandouble acting single cylinder beltdriven pumps as heretoforeconstructed.

Having thus described my invention, what I cla1m as new and desire tosecure by Letters Patent of the United States, is

1. A pump body or casing'for a double acting single cylinder belt-drivenpower pump having a cylinder open at both ends and having an inletopening below said cylinder, a discharge opening at thetop of thecasing, and waterways in communica-' tion with said openings, and theopen ends of the cylinder all in one integral structure, together withintegral shaft bearings consisting of substantially semi-circular bear-1ing members located in the rear of the cylinder, one above the cylinder;and the other substantlally' in alinement therewith and slightly inrearof the upper bearing; the

upper bearing havinpan extension at one s de of the casing and adlagonal web or rib connecting said extension with said body andintegral. therewith. c r I .2. A double-acting single cylinderpumpcomprising apump body or casing having the *cylindeiyand shaft bearingsintegral therewith, said bearings consisting'of substantiallysemi-circular bearing members. lo-' cated in the rear of the cylinder,one above the cylinder and the othersubstantially in alineinenttherewith, the upper hearing be.-

ing extended laterally beyond :one side of the casing andformed with ahorizontal web or rib connecting it with'said body and iii-=1 tegraltherewith.

3. 'A double-. acting single cylinder pm' p 1 comprising a pump body orcasing having a cylinder and shaft bearings integral there with, saidcylinder being open at both ends.

and formed integrally; with waterways lead V ing therefrom to an inletopening below the cylinder and to an outlet opening at the top of thecasing, and said bearings consisting of substantially semi-circularbearing members located one above the plane of the cylinder and theother slightly in the rear of the cylinder, the upper bearing having anextension propelling beyond one slde of the pump body and a horizontalweb or rlb connecting said extension with said body and 10 integraltherewith, so as to firmly brace and prevent breakage of said extension.

In testimony whereof I affix my signature in the presence of twowitnesses.

J AMES OARVILL GORMAN, JR. Witnesses:

FRED L. GRIMEs, BERT B. KUHN.

